a group of 9 people are ordering pizza. each person wants 3 slices and each pizza has 8 slices
To find out how many pizzas are needed for a group of 9 people, where each person wants 3 slices and each pizza has 8 slices, you can follow these steps:
1. Start by calculating the total number of slices needed by multiplying the number of people by the number of slices each person wants:
9 people * 3 slices/person = 27 slices
2. Divide the total number of slices needed by the number of slices in each pizza to determine the number of pizzas required:
27 slices ÷ 8 slices/pizza = 3.375 pizzas
Since you cannot have a fraction of a pizza, you need to round up to the nearest whole number because it's better to have extra slices than not enough. In this case, you would need to round up to 4 pizzas.
Therefore, a group of 9 people, each wanting 3 slices, would need a total of 4 pizzas.